Function parse

src/grdinterpolate.c:170–282

}

static int parse (struct GMT_CTRL *GMT, struct GRDINTERPOLATE_CTRL *Ctrl, struct GMT_OPTION *options) {
	/* This parses the options provided to grdcut and sets parameters in CTRL.
	 * Any GMT common options will override values set previously by other commands.
	 * It also replaces any file names specified as input or output with the data ID
	 * returned when registering these sources/destinations with the API.
	 */

	unsigned int n_errors = 0, n_files = 0, n_alloc = 0, k = 0;
	char *c = NULL;
	struct GMT_OPTION *opt = NULL;
	struct GMTAPI_CTRL *API = GMT->parent;

	for (opt = options; opt; opt = opt->next) {
		switch (opt->option) {

			case '<':	/* Input files */
				if (n_alloc <= Ctrl->In.n_files) {
					n_alloc += GMT_SMALL_CHUNK;
					Ctrl->In.file = gmt_M_memory (GMT, Ctrl->In.file, n_alloc, char *);
				}
				n_errors += gmt_get_required_file (GMT, opt->arg, opt->option, 0, GMT_IS_GRID, GMT_IN, GMT_FILE_REMOTE, &(Ctrl->In.file[Ctrl->In.n_files]));
				Ctrl->In.n_files++;
				break;

			/* Processes program-specific parameters */

			case 'D':	/* Give grid information */
				n_errors += gmt_M_repeated_module_option (API, Ctrl->D.active);
				n_errors += gmt_get_required_string (GMT, opt->arg, opt->option, 0, &Ctrl->D.information);
				break;
			case 'E':	/* Create or read an equidistant profile for slicing */
				n_errors += gmt_M_repeated_module_option (API, Ctrl->E.active);
				n_errors += gmt_get_required_string (GMT, opt->arg, opt->option, 0, &Ctrl->E.lines);
				break;
			case 'F':	/* Set the spline type */
				n_errors += gmt_M_repeated_module_option (API, Ctrl->F.active);
				n_errors += gmt_parse_interpolant (API, opt->arg, &(Ctrl->F.mode), &(Ctrl->F.type), &(Ctrl->F.fit));
				strncpy (Ctrl->F.spline, opt->arg, GMT_LEN8-1);	/* Keep track of what was given since it may need to be passed verbatim to other modules */
				break;
			case 'G':	/* Output file or name template */
				n_errors += gmt_M_repeated_module_option (API, Ctrl->G.active);
				if (n_files++ > 0) { n_errors++; continue; }
				n_errors += gmt_get_required_file (GMT, opt->arg, opt->option, 0, GMT_IS_GRID, GMT_OUT, GMT_FILE_LOCAL, &(Ctrl->G.file));
				break;
			case 'T':	/* Set level sampling spacing */
				n_errors += gmt_M_repeated_module_option (API, Ctrl->T.active);
				n_errors += gmt_get_required_string (GMT, opt->arg, opt->option, 0, &Ctrl->T.string);
				n_errors += gmt_parse_array (GMT, 'T', opt->arg, &(Ctrl->T.T), GMT_ARRAY_TIME | GMT_ARRAY_SCALAR | GMT_ARRAY_RANGE | GMT_ARRAY_UNIQUE, GMT_Z);
				break;

			case 'S':	/* Sample vertically across the grid stack at one or more points */
				n_errors += gmt_M_repeated_module_option (API, Ctrl->S.active);
				if ((c = strstr (opt->arg, "+h"))) {	/* Got a fixed header string for output segment headers */
					if (c[2])
						Ctrl->S.header = strdup (&c[2]);
					else {
						GMT_Report (API, GMT_MSG_ERROR, "Option -S: Modifier +h not given a header string\n");
						n_errors++;